10... a7e3 A new move. 11. e1e3  11... g5g4  12. f3e1 This is now a better square for the knight, and it wouldn't be available if Black had captured on e3 before playing g4. 12... h6h5 Arjun style. More conventional players would try to finish development or break on d5, but he is undisturbed and just pushes the h-pawn as if he had all the time in the world. Confidence and optimism are strong assets for a chess player.